package cn.net.dckj.common.config;

import cn.net.dckj.common.utils.StringUtils;
import cn.net.dckj.common.utils.YamlUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Map;

/**
 * 全局配置类
 *
 * @author dckj
 */
public class Global {
    private static final Logger log = LoggerFactory.getLogger(Global.class);

    private static String NAME = "application.yml";

    /**
     * 当前对象实例
     */
    private static Global global;

    /**
     * 保存全局属性值
     */
    private static Map<String, String> map = new HashMap<String, String>();

    private Global() {
    }

    /**
     * 静态工厂方法
     */
    public static synchronized Global getInstance() {
        if (global == null) {
            global = new Global();
        }
        return global;
    }

    /**
     * 获取配置
     */
    public static String getConfig(String key) {
        String value = map.get(key);
        if (value == null) {
            Map<?, ?> yamlMap = null;
            try {
                yamlMap = YamlUtil.loadYaml(NAME);
                value = String.valueOf(YamlUtil.getProperty(yamlMap, key));
                map.put(key, value != null ? value : StringUtils.EMPTY);
            } catch (FileNotFoundException e) {
                log.error("获取全局配置异常 {}", key);
            }
        }
        return value;
    }

    /**
     * 获取项目名称
     */
    public static String getName() {
        return StringUtils.nvl(getConfig("dckj.name"), "dckj");
    }

    /**
     * 获取项目版本
     */
    public static String getVersion() {
        return StringUtils.nvl(getConfig("dckj.version"), "1.0.0");
    }

    /**
     * 获取版权年份
     */
    public static String getCopyrightYear() {
        return StringUtils.nvl(getConfig("dckj.copyrightYear"), "2019");
    }

    /**
     * 实例演示开关
     */
    public static String isDemoEnabled() {
        return StringUtils.nvl(getConfig("dckj.demoEnabled"), "true");
    }

    /**
     * 获取ip地址开关
     */
    public static Boolean isAddressEnabled() {
        return Boolean.valueOf(getConfig("dckj.addressEnabled"));
    }

    /**
     * 获取应用服务器预览文件临时路径
     */
    public static String getPreviewPath() {
        String previewPath = getConfig("dckj.previewPath");
        if (previewPath.endsWith("/")) {
            previewPath = previewPath.substring(0, previewPath.length() - 1);
        }
        return previewPath;
    }

    /**
     * 获取访问应用服务器预览文件资源路径
     */
    public static String getPreviewUrl() {
        String previewUrl = getConfig("dckj.previewUrl");
        if (previewUrl.endsWith("/")) {
            previewUrl = previewUrl.substring(0, previewUrl.length() - 1);
        }
        return previewUrl;
    }

    /**
     * 获取下载路径
     */
    public static String getDownloadPath() {
        return getPreviewPath() + "/download";
    }
}
